CFD software is used to perform 3-d numerical simulation of steam flow field inside direct air-cooling exhaust steam pipe of a 660 MW supercritical unit.
Air passes through the inside of the range hood to be discharged, turbulent flow is not easy to generate in an exhaustpipe, noise is low, and the range hood only shocks slightly.
气流经过其内部流动直至排出，在排烟管内不易产生紊流，噪音小，油烟机不会产生大的震动。
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The water pipe set inside the smoke pipe (5) increases the heat transmission area, cooling down the exhaust temperature.